Looking at the performance benchmarks at OJB's page, there's a dramatic
difference in speed between ODMG and PB implementations. Is this because of
the object locking features with ODMG, or is it because ODMG uses PB and
that extra adapter layer causes slow downs?
-Jacob
---
Another thing that can be done with OJB is to create multiple Object
mappings to the same row. For example, I store web page content in a
database and like you said, it would be slow to pull down all that clob
content.
PageHeader[6 cols pk, header fields]
PageContent[2 cols pk, clob fields]
Page
There are multiple Cache options that offer different scopes for
transactions, along with PersistenceBrokers. You should look at the API for
options on concurrency and transaction isolation with changing the
previously stated items in the OJB.properties.
-Jacob
| -Original Message-
| Fro
I followed Scott's example and put one together for MySql, with setting up
start index, end index with limit:
public final class MySqlGenerator extends SqlGeneratorDefaultImpl
{
/**
* @param arg0
*/
public MySqlGenerator(Platform arg0)
{
su
().
|
| -Original Message-
| From: Jacob Hookom [mailto:[EMAIL PROTECTED]
| Sent: Friday, March 28, 2003 11:29 AM
| To: [EMAIL PROTECTED]
| Subject: PersistenceBroker State Question
|
|
| Pertaining to caching and speed of the PersistenceBroker, am I on the
| right
| track for structuring calls like so
{
broker.close();
}
}
Does the cache in general get flushed when I call broker.close()? I'm just
using the Broker in Single-VM mode.
Regards,
Jacob Hookom
Student, University of Wisconsin
-
To unsubscribe, e-mail: [
The goal is to select children based on a distinct parent id. Example of
the sql code:
SELECT f.ForumTitle,
(SELECT Max(p.PostDateTime)
FROM tbl_Posts p
WHERE p.Forum_ID = f.Forum_ID) as MaxPostDateTime
FROM tbl_Forum f
ORDER BY MaxPostDateTime DESC
I would like to be able to accomp
ema.xml is: Artikel
The tag specified in ojbtest-data.xml is: Article
Where is the lynch pin?
________
Jacob Hookom
"The first rule of intelligent
tinkering is to save all the parts"
-
To unsubsc
Hey all, the mail archives are not working properly atm, so I'm sorry for
the post, but I'm wondering how to handle grabbing the min/max in a query
without doing a comparator on the returned List?
Many Thanks!
________
Jacob Hookom
"The first rule
